Real Vim ninjas count every keystroke - do you?

Pick a challenge, fire up Vim, and show us what you got.

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$ gem install vimgolf
$ vimgolf setup
$ vimgolf put 5c9f68afe73f870006154904

Kolakoski sequence -- level 2

This time, the line above describes the line below. Level 1 at: http://www.vimgolf.com/challenges/5c880211ab65cb00065c74eb

Start file
12
End file
12
122
12211
1221121
1221121221
122112122122112
12211212212211211221211
1221121221221121122121121221121121
12211212212211211221211212211211212212211212212112
122112122122112112212112122112112122122112122121121122122112122122112112122
12211212212211211221211212211211212212211212212112112212211212212211211212212112212211212212211211221211212212211

View Diff

1a2,11
> 122
> 12211
> 1221121
> 1221121221
> 122112122122112
> 12211212212211211221211
> 1221121221221121122121121221121121
> 12211212212211211221211212211211212212211212212112
> 122112122122112112212112122112112122122112122121121122122112122122112112122
> 12211212212211211221211212211211212212211212212112112212211212212211211212212112212211212212211211221211212212211

Solutions by @dstein64:

Unlock 1 remaining solutions by signing in and submitting your own entry
Created by: @TitouanT_

8 active golfers, 16 entries

Solutions by @dstein64:
50
#5 - Dan / @dstein64

03/31/2019 at 03:13AM